-void SIMIX_host_restart_processes(smx_host_t host);
-xbt_dict_t SIMIX_host_get_properties(smx_host_t host);
-double SIMIX_host_get_speed(smx_host_t host);
-double SIMIX_host_get_available_speed(smx_host_t host);
-int SIMIX_host_get_state(smx_host_t host);
-smx_action_t SIMIX_host_execute(const char *name,
- smx_host_t host, double computation_amount, double priority);
-smx_action_t SIMIX_host_parallel_execute(const char *name,
- int host_nb, smx_host_t *host_list,
- double *computation_amount, double *communication_amount,
- double amount, double rate);
-void SIMIX_host_execution_destroy(smx_action_t action);
-void SIMIX_host_execution_cancel(smx_action_t action);
-double SIMIX_host_execution_get_remains(smx_action_t action);
-e_smx_state_t SIMIX_host_execution_get_state(smx_action_t action);
-void SIMIX_host_execution_set_priority(smx_action_t action, double priority);
-void SIMIX_pre_host_execution_wait(smx_simcall_t simcall);
-
-void SIMIX_host_execution_suspend(smx_action_t action);
-void SIMIX_host_execution_resume(smx_action_t action);
-
-void SIMIX_post_host_execute(smx_action_t action);
-
-#ifdef HAVE_TRACING
-void SIMIX_set_category(smx_action_t action, const char *category);
-#endif
+
+XBT_PRIVATE void SIMIX_host_autorestart(sg_host_t host);
+XBT_PRIVATE smx_activity_t SIMIX_execution_start(smx_actor_t issuer, const char *name,
+ double flops_amount, double priority, double bound);
+XBT_PRIVATE smx_activity_t SIMIX_execution_parallel_start(const char* name, int host_nb, sg_host_t* host_list,
+ double* flops_amount, double* bytes_amount, double amount,
+ double rate, double timeout);
+XBT_PRIVATE void SIMIX_execution_cancel(smx_activity_t synchro);
+XBT_PRIVATE void SIMIX_execution_set_priority(smx_activity_t synchro, double priority);
+XBT_PRIVATE void SIMIX_execution_set_bound(smx_activity_t synchro, double bound);
+
+XBT_PRIVATE void SIMIX_execution_finish(simgrid::kernel::activity::Exec *exec);
+
+XBT_PRIVATE void SIMIX_set_category(smx_activity_t synchro, const char *category);
+
+/* vm related stuff */
+XBT_PRIVATE void SIMIX_vm_resume(sg_host_t ind_vm);
+
+XBT_PRIVATE void SIMIX_vm_suspend(sg_host_t ind_vm, smx_actor_t issuer);
+// --
+XBT_PRIVATE void SIMIX_vm_save(sg_host_t ind_vm, smx_actor_t issuer);
+
+XBT_PRIVATE void SIMIX_vm_start(sg_host_t ind_vm);
+
+XBT_PRIVATE void SIMIX_vm_shutdown(sg_host_t ind_vm, smx_actor_t issuer);
+// --
+
+SG_END_DECL()